Double-impulsive-force metering device based on force transmission

Abstract

The utility model is suitable for the technical field of weighing and metering equipment, and provides a double-impulsive-force metering device based on force transmission, which comprises a weighing box, a material guide bin communicated with the weighing box, and an impulsive-force assembly and a sensing and measuring assembly which are arranged in the weighing box, the sensing and measuring assembly comprises a mounting seat, a first sensor which is arranged by inclining the horizontal plane by 45 degrees, a second sensor which is arranged along the horizontal plane and a connecting seat, and the impulsive force assembly comprises a connecting rod which is connected with the second sensor and an impulsive force plate which is arranged at the bottom of the guide bin. The device solves the problems that the size of a hopper is increased by double impulsive force plates and the accuracy of a detection result is influenced by errors in the contact amount of materials and different impulsive force plates, and achieves the purpose that the sensors in different directions are matched with the impulsive force plates, and the same impulsive force plate is used for completing the weight measurement of fluid materials in different directions; the structural size is simplified, and meanwhile the detection result is prevented from being affected by errors of the direct contact amount of materials and the impact plate.

Description

Technical Field

[0001] This utility model relates to the field of weighing and measuring equipment technology, and more specifically, it relates to a dual-impact measuring device based on force transmission. Background Technology

[0002] With the construction of digital ports, smart ports and other projects, the application of weight measurement for mobile objects, especially coal and grain, is becoming more widespread. Traditional ports use static weighing scales, which have problems such as complex structure, difficulty in arranging hoppers, and difficulty in digitizing and uploading weight data in real time.

[0003] Patent CN218035160U discloses a dual-impact metering scale, which increases the residence time of material in the measuring section and improves the measurement accuracy by setting two mutually cooperating impact plate structures.

[0004] While the aforementioned device can measure material mass in real time using a dual-impact metering method, it requires two impact plates in different directions to simultaneously detect the weight of the material at different locations twice to obtain the final weight measurement result. Structurally, setting up two impact plates in different directions increases the volume of the hopper, making it difficult to arrange the dual-impact metering scale in a small-spaced environment. Furthermore, errors in the amount of contact between the material and the different impact plates during its descent also affect the accuracy of the final weight measurement result. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide a dual-impact metering device based on force transmission, which uses sensors in different directions to work with an impact plate, and utilizes the same impact plate to complete the weight measurement of fluid materials in different directions. This simplifies the structural volume while avoiding errors in the amount of direct contact between the material and the impact plate from affecting the detection results.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A dual-impact metering device based on force transmission includes a weighing box, a guide bin communicating with the weighing box, and an impact component and a sensing and measuring component installed inside the weighing box. The weighing box has an inlet at the top and an outlet at the bottom. The middle part of the weighing box is surrounded by side plates. The sensing and measuring component includes a mounting base, a first sensor set at 45° to the horizontal plane, a second sensor set along the horizontal plane, and a connecting base connecting the first sensor and the second sensor. The impact component includes a connecting rod connected to the second sensor, a connecting plate connected to the connecting rod, and an impact plate set at the bottom of the guide bin.

[0008] The present invention is further configured such that: the mounting base is connected to the side plate, one end of the first sensor is configured as a first connecting end and the other end is configured as a first cantilever end, the first connecting end is connected to the mounting base, and the first cantilever end is connected to the connecting base.

[0009] The present invention is further configured such that: the connecting base includes a main board, a fixing pin plate disposed on the top of the main board, and two second mounting plates disposed vertically on the main board, wherein the fixing pin plate is connected to the first cantilever end.

[0010] The present invention is further configured such that: one end of the second sensor is configured as a second connecting end and the other end is configured as a second cantilever end; the second connecting end is connected to the second mounting plate; and the second cantilever end is connected to the connecting rod.

[0011] The present invention is further configured such that: the impact plate includes a connecting part connected to the connecting plate and an arc-shaped part disposed at the bottom of the connecting part, the arc-shaped part being disposed at the bottom of the guide hopper and having a maximum height higher than the bottom height of the guide hopper.

[0012] By adopting the above technical solution, the width of the guide section is smaller than the width of the impact plate, ensuring that all fluid materials discharged from the guide port can enter the impact component for weighing and measurement; the highest point of the arc section is higher than the bottom height of the guide bin, ensuring that all fluid materials falling from the guide port can completely enter the impact plate for weighing and measurement.

[0013] The present invention is further configured such that baffles are symmetrically arranged on both sides of the arc-shaped portion, and the baffles are arranged facing the center of the arc-shaped portion.

[0014] The present invention is further configured such that: the guide bin is formed by a guide plate, the top of the guide plate is connected to the feed inlet, the bottom of the guide plate is provided with a guide part, the width of the guide part is smaller than the width of the impact plate, and a guide port is opened on the side of the guide part near the impact plate.

[0015] The beneficial effects of this utility model are:

[0016] The first and second sensors are connected by a connector. The force on the impact component is transmitted from the second sensor to the first sensor through the connector. The first and second sensors measure the force in different directions, which improves the accuracy of the weighing test results. At the same time, it can simplify the structure of the metering device by reducing the number of impact plates and avoid the error of the amount of direct contact between the fluid material and different impact plates affecting the accuracy of the test results. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1This is a schematic diagram of the structure of the dual-impact metering device of this utility model.

[0019] Figure 2 for Figure 1 The top view shown.

[0020] Figure 3 For along Figure 1 A cross-sectional view showing section line AA.

[0021] Figure 4 For along Figure 2 The sectional view showing the BB section line.

[0022] Figure 5 for Figure 3 The diagram shows the structure of the impact component and the sensing and measurement component.

[0023] Explanation of reference numerals in the attached diagram: 1. Weighing box; 11. Feed inlet; 12. Discharge outlet; 13. Side plate;

[0024] 2. Feed hopper; 21. Feed guide plate; 22. Collection section; 23. Drop section; 24. Feed guide section; 25. Feed inlet;

[0025] 3. Impact assembly; 31. Connecting rod; 32. Connecting plate; 33. Impact plate; 331. Connecting part; 332. Arc-shaped part; 333. Baffle plate;

[0026] 4. Sensing and measurement assembly; 41. Mounting base; 411. Fixing plate; 412. Reinforcing plate; 413. First mounting plate; 42. First sensor; 421. First connecting end; 422. First cantilever end; 43. Connecting base; 431. Main board; 432. Fixing pin plate; 433. Second mounting plate; 44. Second sensor; 441. Second connecting end; 442. Second cantilever end;

[0027] 5. Controller. Detailed Implementation

[0028] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will now be described in detail with reference to the accompanying drawings. This drawing is a simplified schematic diagram, illustrating only the basic aspects of the present utility model, and therefore only shows the components relevant to the present utility model. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0029] Please refer to Figure 1-3A dual-impact metering device based on force transmission includes a weighing box 1, a guide bin 2 connected to the weighing box 1, and an impact component 3 and a sensing and measurement component 4 installed inside the weighing box 1. Fluid materials (such as coal, grain, etc.) requiring weighing can enter the guide bin 2 from the weighing box 1. After being guided by the guide bin 2, they fall onto the impact component 3. The impact component 3 transmits the force to the sensing and measurement component 4, which measures the magnitude of the tensile force and outputs a voltage signal as a strain gauge bridge. A controller 5 is also installed inside the weighing box 1, electrically connected to the sensing and measurement component 4. The controller 5 detects the analog signal output by the sensing and measurement component 4, processes it, and then transmits the measured weight information externally via Ethernet communication.

[0030] Please refer to Figure 1-3 The weighing box 1 has an inlet 11 at the top and an outlet 12 at the bottom, and is surrounded by side plates 13 in the middle. The inlet 11 is a hollow structure with a round top and a round bottom, and is connected to the side plate 13 at the bottom; the outlet 12 is a hollow structure with a round top and a round bottom, and is connected to the side plate 13 at the top. The inlet 11 and outlet 12 are respectively connected to the cavity formed inside the side plate 13, forming a channel for the fluid material to fall.

[0031] Please refer to Figure 2 and Figure 4 The guide bin 2 is surrounded by a guide plate 21. The top of the guide bin 2 is designed as a rectangular structure that fits the bottom of the inlet 11. The top of the guide plate 21 is connected to the inlet 11, ensuring that all fluid material can enter the guide bin 2. A collection section 22 is located on the side of the guide bin 2 closest to the sensing and measuring component 4. The distance between the collection sections 22 and the axis of the weighing box 1 gradually decreases from the side closest to the sensing and measuring component 4. A drop section 23 with a diameter smaller than that of the inlet 11 is located at the bottom of the collection section 22. The fluid material from the inlet 11 is collected by the collection section 22 and deposited into the drop section 23. The change in diameter between the top of the guide bin 2 and the drop section 23 completes the centralized collection of the fluid material. A guide section 24 is located at the bottom of the guide plate 21. The cross-section of the guide section 24 is arc-shaped, with the lower end of the arc facing the impact component 3, facilitating the fluid material to slide down through the guide section 24 onto the impact component 3. The material guide section 24 has a material guide port 25 on the side near the impact plate 33. The fluid material falls from the material guide section 24 to the impact force transmission component 3 through the material guide port 25. The width of the material guide section 24 is smaller than the width of the impact plate 33, so as to ensure that all the fluid material discharged from the material guide port 25 can enter the impact force component 3 for weighing and measurement.

[0032] Please refer to Figure 3-5The sensing and measurement assembly 4 includes a mounting base 41, a first sensor 42 inclined at 45° to the horizontal plane, a second sensor 44 arranged along the horizontal plane, and a connecting base 43 connecting the first sensor 42 and the second sensor 44. The mounting base 41 is connected to the side plate 13 and includes a fixing plate 411 fixedly connected to the side plate 13, a first mounting plate 413 arranged parallel to the fixing plate 411, and a reinforcing plate 412 disposed between the fixing plate 411 and the first mounting plate 413. The upper part of the reinforcing plate 412 is arranged at a 45° angle to the horizontal plane, and the lower part of the reinforcing plate 412 is arranged along the vertical plane. The first sensor 42 has one end configured as a first connecting end 421 and the other end configured as a first cantilever end 422. The first connecting end 421 is connected to the first mounting plate 413 on the mounting base 41. Specifically, the first connecting end 421 is fixedly connected to the first mounting plate 413 by bolts. In other embodiments, the first connecting end 421 and the first mounting plate 413 are connected by other methods, which are not specifically limited here. The first sensor 42 is inclined at a 45° angle to the horizontal plane, and the bottom of the first connecting end 421 on the first sensor 42 abuts against the upper part of the reinforcing plate 412, so that the mounting angle of the first sensor 42 is fixed by the reinforcing plate 412. The first cantilever end 422 is connected to the connecting seat 43, and the force is transmitted between the first sensor 42 and the second sensor 44 through the connecting seat 43.

[0033] Please refer to Figure 3-5 The connector 43 includes a main board 431, a fixing pin plate 432 disposed on the top of the main board 431, and two second mounting plates 433 disposed vertically to the main board 431. The fixing pin plate 432 is connected to the first cantilever end 422. The upper part of the main board 431 is disposed at a 45° angle to the horizontal plane, and the lower part of the main board 431 is disposed along a vertical plane. The fixing pin plate 432 is disposed on the upper part of the main board 431 near the first sensor 42. Two fixing pin plates 432 are provided, and the two fixing pin plates 432 are respectively attached to the side wall of the first cantilever end 422 on the first sensor 42. The fixing pin plate 432 has through holes, and the first cantilever end 422 is fixedly connected to the fixing pin plate 432 by bolts. In some other embodiments, the first cantilever end 422 and the fixing pin plate 432 are also connected by other connection methods, which are not specifically limited here. The two second mounting plates 433 are disposed vertically, and the second sensor 44 is disposed between the two second mounting plates 433. The second sensor 44 has a second connecting end 441 at one end and a second cantilever end 442 at the other end. The second connecting end 441 is connected to the second mounting plate 433, and the second cantilever end 442 is connected to the connecting rod 31. Specifically, the second connecting end 441 is fixedly connected to the second mounting plate 433 by bolts. In some other embodiments, the second connecting end 441 and the second mounting plate 433 are also connected by other methods, which are not specifically limited here.

[0034] Please refer to Figure 3-5 The impact assembly 3 includes a connecting rod 31 connected to the second sensor 44, a connecting plate 32 connected to the connecting rod 31, and an impact plate 33 disposed at the bottom of the feed hopper 2. The connecting rod 31 is arranged vertically and is fixedly connected to the second cantilever end 442. The connecting plate 32 is configured as a trapezoidal plate structure, and the width of the bottom of the connecting plate 32 is the same as the width of the impact plate 33. The impact plate 33 includes a connecting part 331 connected to the connecting plate 32 and an arc-shaped part 332 disposed at the bottom of the connecting part 331. The arc-shaped part 332 forms a cavity that can accommodate fluid material. The arc-shaped part 332 is disposed at the bottom of the feed hopper 2, and its highest point is higher than the bottom height of the feed hopper 2, ensuring that the fluid material falling from the feed inlet 25 can completely enter the impact plate 33 for weighing and measurement. A baffle plate 333 is symmetrically arranged on both sides of the arc-shaped part 332. The baffle plate 333 is positioned towards the center of the arc-shaped part 332. The baffle plate 333 can block the fluid material splashed during the falling process and make it fall back into the arc-shaped part 332, thereby improving the accuracy of the weighing measurement results.

[0035] like Figure 4 As shown, the force F exerted by the fluid material on the impact plate 33 is measured by the second sensor 44, which can detect the component of F. During detection, the first sensor 42 is able to detect the component of force F. The system performs real-time detection of forces acting on the impact plate 33 in different directions simultaneously using the first sensor 42 and the second sensor 44. In this application, both the first sensor 42 and the second sensor 44 are strain gauge cantilever beam type tension sensors, with the installed strain gauges forming a DC bridge. The first sensor 42 and the second sensor 44 can be ILGB-50kg type tension sensors. The controller 5 includes a main control unit, a measurement module, and an Ethernet communication module. The CPU core chip of the main control unit can be an STM32 series microcontroller from STMicroelectronics, specifically an STM32F407. The Ethernet communication module can be a YT8521SH-CA communication module with a transmission distance of 100m. The main control unit is connected to the measurement module via a parallel bus. The measurement module first differentially amplifies the tension information, converts it via an ADC circuit, and then connects it to the main control unit. The main control unit is connected to the wireless communication module via serial communication at TTL level. The Ethernet communication module communicates with the CPU module using differential signals.

[0036] Specifically, the fluid material to be weighed enters the weighing box 1 through the feed inlet 11, is collected by the collecting part 22 and falls to the dropping part 23, and then falls from the guide inlet 25 through the guide part 24 into the arc-shaped part 332 on the impact plate 33. The baffle plate 333 blocks the fluid material splashed during the falling process, so that it falls back into the arc-shaped part 332.

[0037] During the process of the fluid material falling and contacting the arc-shaped part 33, a force with a certain angle to the arc-shaped part 33 is generated. This force is transmitted to the second sensor 44 through the connection of the impact component, and then to the first sensor 42 through the connecting seat 43. The first sensor 42 and the second sensor 44 measure the force in different directions in real time, thereby obtaining the real-time flow value of the fluid material. The flow value is output as a voltage signal of the strain gauge bridge. The controller 5 detects the analog signal output by the sensing and measurement component 4, processes it, and then sends the measured weight information outward through Ethernet communication.

[0038] After weighing, the fluid material continues to fall under the action of gravity and is eventually discharged from the outlet 12.

[0039] The first sensor 42 and the second sensor 44 are connected via the connecting bracket 43. The force received by the impact component 3 is transmitted from the second sensor 44 to the first sensor 42 via the connecting bracket 43. The component force of the second sensor 44 on F The first sensor 42 was used to detect the component of force F. The detection is performed by measuring forces in different directions using the first sensor 42 and the second sensor 44, which improves the accuracy of the weighing detection results. At the same time, it can simplify the structure of the metering device by reducing the number of impact plates 33, and avoid the error of the amount of direct contact between the fluid material and different impact plates affecting the accuracy of the detection results.

[0040] The width of the guide section 24 is smaller than the width of the impact plate 33, ensuring that all fluid materials discharged from the guide port 25 can enter the impact assembly 3 for weighing and measurement. The highest point of the arc-shaped section 332 is higher than the bottom height of the guide bin 2, ensuring that all fluid materials falling from the guide port 25 can completely enter the impact plate 33 for weighing and measurement. The baffle plate 333 blocks the fluid materials splashing during the falling process, causing them to fall back into the arc-shaped section 332. This ensures that the fluid materials can fully contact the arc-shaped section 332, avoiding the influence of insufficient contact between the fluid materials and the flow rate detected by the arc-shaped section 332, thereby improving the accuracy of the weighing and measurement results.

[0041] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] It should be understood that the terms "length", "width", "up", "down", "front and back", "left and right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] Based on the preferred embodiments of this utility model described above, those skilled in the art can make various changes and modifications without departing from the scope of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A dual-stroke force metering device based on force transmission, characterized by: The weighing box (1) includes a feeding hopper (2) connected to the weighing box (1) and an impact assembly (3) and a sensing and measuring assembly (4) installed inside the weighing box (1). The weighing box (1) has an inlet (11) at the top and an outlet (12) at the bottom. The middle part of the weighing box (1) is surrounded by a side plate (13). The sensing and measuring assembly (4) includes a mounting base (41), a first sensor (42) set at an angle of 45° to the horizontal plane, a second sensor (44) set along the horizontal plane, and a connecting base (43) connecting the first sensor (42) and the second sensor (44). The impact assembly (3) includes a connecting rod (31) connected to the second sensor (44), a connecting plate (32) connected to the connecting rod (31), and an impact plate (33) set at the bottom of the feeding hopper (2).

2. A dual-stroke force metering device based on force transmission according to claim 1, characterized in that: The mounting base (41) is connected to the side plate (13). One end of the first sensor (42) is set as the first connecting end (421) and the other end is set as the first cantilever end (422). The first connecting end (421) is connected to the mounting base (41) and the first cantilever end (422) is connected to the connecting base (43).

3. A dual-stroke force metering device based on force transmission according to claim 2, characterized in that: The connector (43) includes a main board (431), a fixing pin plate (432) disposed on the top of the main board (431), and two second mounting plates (433) disposed vertically on the main board (431). The fixing pin plate (432) is connected to the first cantilever end (422).

4. The dual-impact metering device based on force transmission according to claim 3, characterized in that: The second sensor (44) has a second connection end (441) at one end and a second cantilever end (442) at the other end. The second connection end (441) is connected to the second mounting plate (433), and the second cantilever end (442) is connected to the connecting rod (31).

5. A dual-stroke force gauge based on force transmission according to claim 1, characterized in that: The impact plate (33) includes a connecting part (331) connected to the connecting plate (32) and an arc-shaped part (332) disposed at the bottom of the connecting part (331). The arc-shaped part (332) is disposed at the bottom of the guide hopper (2) and its highest point is higher than the bottom height of the guide hopper (2).

6. A dual-stroke force gauge based on force transmission according to claim 5, characterized in that: The arc-shaped portion (332) is symmetrically provided with baffle plates (333) on both sides, and the baffle plates (333) are arranged facing the center of the arc-shaped portion (332).

7. A dual-stroke force gauge based on force transmission according to claim 1, characterized in that: The guide bin (2) is surrounded by a guide plate (21). The top of the guide plate (21) is connected to the feed inlet (11). The bottom of the guide plate (21) is provided with a guide part (24). The width of the guide part (24) is smaller than the width of the impact plate (33). The guide part (24) has a guide port (25) on the side near the impact plate (33).

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